PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/10-13:42:50
G02     215.5          59.8                8.9 +/-    0.49      10.1 +/-    0.49  0.040 / 0.050
G06     61.5           76.6                7.1 +/-    0.52       7.2 +/-    0.52  0.030 / 0.050
G12     318.5          35.2                6.2 +/-    1.30       9.7 +/-    1.30  0.060 / 0.080
G17     59.0           30.4                5.9 +/-    0.45      10.3 +/-    0.45  0.040 / 0.080
G19     41.6           47.8                5.9 +/-    0.47       7.7 +/-    0.47  0.030 / 0.030
G24     267.8          41.4                6.6 +/-    1.29       9.3 +/-    1.29  0.020 / 0.030
G28     123.0          13.0                8.3 +/-    1.84      21.5 +/-    1.84  0.130 / 0.390